Explore BrainMass

Explore BrainMass

    Hypothesis Testing of Mean: Evidence that executive blood pressures differ from the national average

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Do middle-aged male executives have different average blood pressure than the general population? The National Center for Health Statistics reports that the mean systolic pressure for males ages 35 to 44 is 128 and the standard deviation of this population is 15. The medical director of a company looks at the medical records of 72 company executives in this age group and finds that the mean systolic blood pressure in this sample is 126.07. Is this evidence that executive blood pressures differ from the national average? Use a 5% level of significance.

    State the Null Hypothesis and the Alternative Hypothesis.

    Determine the test statistic.

    Determine the P-value.

    Make a decision regarding the hypotheses based on the P-value and the Level of Significance.

    © BrainMass Inc. brainmass.com November 30, 2021, 5:00 am ad1c9bdddf

    Solution Summary

    The solution provides step by step method for the calculation of testing of hypothesis. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.